Pith Number

pith:W4JDCGDD

pith:2018:W4JDCGDDNF4LB2NZWBUZY4HD4D

not attested not anchored not stored refs pending

Fix your classifier: the marginal value of training the last weight layer

Daniel Soudry, Elad Hoffer, Itay Hubara

arxiv:1801.04540 v2 · 2018-01-14 · cs.LG · cs.CV · stat.ML

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W4JDCGDDNF4LB2NZWBUZY4HD4D}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:20:35.634489Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7123118636978b0e9b9b0699c70e3e0d0f12ac5d9b1f79d1675553a2d0ab682

Aliases

arxiv: 1801.04540 · arxiv_version: 1801.04540v2 · doi: 10.48550/arxiv.1801.04540 · pith_short_12: W4JDCGDDNF4L · pith_short_16: W4JDCGDDNF4LB2NZ · pith_short_8: W4JDCGDD

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/W4JDCGDDNF4LB2NZWBUZY4HD4D \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: b7123118636978b0e9b9b0699c70e3e0d0f12ac5d9b1f79d1675553a2d0ab682

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6732124eb796f00f945e836405df1f682c8b13c40010f0ec99dee4833d4917c",
    "cross_cats_sorted": [
      "cs.CV",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-01-14T12:00:43Z",
    "title_canon_sha256": "d944d75904907ff66c7d06bb67f20b418bd19e761c715c5d76b057b3a8fd6a25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.04540",
    "kind": "arxiv",
    "version": 2
  }
}